{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{2}{c}}
\toprule
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}\\
                    &\multicolumn{1}{c}{\shortstack{Attitudinal\\affective polarization}}&\multicolumn{1}{c}{\shortstack{Affective\\polarization (out-)\\party animus only}}\\
\midrule
Available on SBD dates&      -0.268         &      -0.231         \\
                    &     [0.243]         &     [0.258]         \\
\addlinespace
Available on DW dates&      -0.377         &      -0.354         \\
                    &     [0.236]         &     [0.251]         \\
\addlinespace
Republicans         &      -0.589\sym{**} &      -0.550\sym{*}  \\
                    &     [0.204]         &     [0.216]         \\
\addlinespace
Independents        &      -0.813\sym{**} &      -0.656\sym{*}  \\
                    &     [0.288]         &     [0.305]         \\
\addlinespace
BA sample           &      -0.319         &      -0.481\sym{*}  \\
                    &     [0.188]         &     [0.200]         \\
\addlinespace
Constant            &       0.870\sym{**} &       0.943\sym{**} \\
                    &     [0.286]         &     [0.303]         \\
\midrule
Observations        &         148         &         148         \\
\bottomrule
\end{tabular}
}
